Easy way to reproduce problem is to install qtbase5-examples and run
/usr/lib/arm-linux-gnueabihf/qt5/examples/opengl/cube/cube --desktop_file_hint=dialer-app
Easy way to reproduce problem is to install qtbase5-examples and run
/usr/lib/ arm-linux- gnueabihf/ qt5/examples/ opengl/ cube/cube --desktop_ file_hint= dialer- app